To eat less food needs to be the same color.
The more colourful the food looks, the greater the appetite it causes.
People tends to subconsciously eat more colorful food. It seems to be tastier than the food is the same color.
Makers of the popular multi-colored candy-jelly beans are knowingly using this trick: bright palette makes a person to buy and eat a lot of candy. In addition, it was found that the person eats more food if the color matches the color plates.
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